Title :
Preliminary Design of a Ka-Band, Three-Stage, Harmonic-Multiplying Gyrotron Traveling Wave Amplifier
Author :
Jiao, Chong-Qing ; Luo, Ji-Run
Author_Institution :
Inst. of Electron., Chinese Acad. of Sci.
Abstract :
The preliminary design result of a ka-band, harmonic multiplying gyro-TWT with three-stage interaction circuits is presented. The first stage is coated with distributed loss to suppress the absolute instability and the lengths of the other two stages are limited below the critical length of the corresponding gyro-BWO. A saturated peak power of 540kW with an efficiency of 21.6%, a gain of 58dB, and a 3dB bandwidth of 4.5% is predicted for the gyro-TWT driven by 100kV, 25A electron beam with a pitch angle of 1.0 and a velocity spread of 5%
Keywords :
backward wave oscillators; electron beams; gyrotrons; microwave amplifiers; travelling wave amplifiers; 100 kV; 25 A; 540 kW; 58 dB; Ka-band; electron beam; gyro-BWO; gyrotron traveling wave amplifier; three-stage interaction circuits; Bandwidth; Circuit stability; Electron beams; Frequency; Gyrotrons; High power amplifiers; Magnetic fields; Power amplifiers; Power generation; Voltage; gyro-twt; harmonic multiplying; ka-band;
Conference_Titel :
Vacuum Electronics Conference, 2006 held Jointly with 2006 IEEE International Vacuum Electron Sources., IEEE International
Conference_Location :
Monterey, CA
Print_ISBN :
1-4244-0108-9
DOI :
10.1109/IVELEC.2006.1666286
